Light distance question &spectrum question

C

Cabbagelit

Active Member
Ok I have a HLG 600 and this thing is very bright and powerful. I had them at 32 inches at 350 ppfd and I was still getting light burn. My question is can I hang the lights 40-48 inches and control the par through my dimmer.


my first grow I used a cheap vivosun 600w and the plant was pretty compact and put together. It’s gives off a blue red light..this HLG 600 plants seem to be more elongated. Also I’m running into deficiencies and tip burn. Maybe from the light or plants transpiring too quickly. I’m sure I’m using my light wrong.

so my second question is..which spectrum is most effective during veg?
 
Rocket Soul

Rocket Soul

Well-Known Member
Whats your environment liike? Are the plants drinking properly? Seedlings?
Need temps at 81-84F, or youll get shit like this. Dim it bit
 
C

Cabbagelit

Active Member
Rocket Soul said:
Whats your environment liike? Are the plants drinking properly? Seedlings?
Need temps at 81-84F, or youll get shit like this. Dim it bit
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Temp and humidity are 78 degree 55 rh is what I aim for, drinking water every other day. watering top soil everyday just to keep top wet...I took the light out figured I just use it during flowering...Plants are a lot happier...I got an ES 300 and a damn vivosun light lol
 
Airwalker16

Airwalker16

Well-Known Member
Cabbagelit said:
Temp and humidity are 78 degree 55 rh is what I aim for, drinking water every other day. watering top soil everyday just to keep top wet...I took the light out figured I just use it during flowering...Plants are a lot happier...I got an ES 300 and a damn vivosun light lol
Click to expand...
Let your soil dry out man.
 
C

Cabbagelit

Active Member
Airwalker16 said:
If heir anything but seedlings, there's fuckin NO WAY you're getting light burn at 32". My Fissioning boards are literally 10" away.
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Im shrugging my shoulders rn...Im at 32 inches..using a PAR meter..I know what my PPFD is...im still getting burnt tips. I know it aint my soil mix..shit was just fine until I introduced that fucking light
 
Humple

Humple

Well-Known Member
Cabbagelit said:
Thank u bro. I’m reading up how to fix the problem now
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Up your temps and add some epsom salts to your next watering. You're definitely experiencing mag deficiency, and it's quite common when new to LED.

You need to try to keep your temps over 80°F, because the lack of infrared light (like you'd get from an HPS) means the leaves aren't as warm under LED, even though the ambient temp might be the same as what you had under HPS. Once you get the environment dialed in, you'll see what LED can really do.
 
C

Cabbagelit

Active Member
Kassiopeija said:
no, not wet. damp.
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I only water them when I realize they are
Humple said:
Up your temps and add some epsom salts to your next watering. You're definitely experiencing mag deficiency, and it's quite common when new to LED.

You need to try to keep your temps over 80°F, because the lack of infrared light (like you'd get from an HPS) means the leaves aren't as warm under LED, even though the ambient temp might be the same as what you had under HPS. Once you get the environment dialed in, you'll see what LED can really do.
Click to expand...
What temperature should my leaves be at? Over 80 degrees? Currently they are at 78
 
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